Portion of a display with a graphical user interface



FIG. 1 is a landscape face view of a portion of a display with a graphical user interface, showing our new design, according to a first embodiment thereof.

FIG. 2 is a portrait face view of a portion of a display with a graphical user interface, according to the first embodiment thereof.

FIG. 3 is a landscape face view of a portion of a display with a graphical user interface, showing our new design, according to a second embodiment thereof; and,

FIG. 4 is a portrait face view of a portion of a display with a graphical user interface, according to the second embodiment thereof.

The outermost broken lines show a display screen or portion thereof and form no part of the claimed design. The remaining broken lines, showing portions of the graphical user interface, forms no part of the claimed design. 

CLAIM The ornamental design for a portion of a display with a graphical user interface, as shown and described. 